"The remainder of the cost would be passed through from industrial and commercial customers and eventually be met by households from increases in the cost of living.

"The total impact would be in the order of £600 per household per year, assuming 26 million households."

The study was rejected by the Department for Energy and Climate Change, which argues bills will be brought down as a result of its green policies.

According to its estimates, household energy bills will be around £76 higher by 2020, driven up by green subsidies and rising gas prices.

However, the Department said bills will be around £166 lower than they would otherwise be, partly because of more green appliances and lower energy usage.

Asked about the report, a DECC spokesman said: “We don’t recognise these numbers. The report is a manifesto for locking the British economy into excessive reliance on imported gas from far-flung, unstable parts of the world. It ignores four things.

“First, it’s the global gas price, not green subsidies, that has primarily been pushing up energy bills.

“Second, the costs of renewables are coming down, we’ve already cut the subsidies for onshore wind and solar and in future all green technologies will have to compete to deliver the best bang for the buck.

“Third, our household energy efficiency policies are more than offsetting the costs of clean energy investment.”